Description
Calculate consumed mass as package fraction and labeled-serving equivalents.
Dietary arithmetic depends on as-purchased versus edible mass, per-serving versus per-100-gram bases, measured versus trace states and recall periods. A recorded allergen list is not a verified allergen-free declaration. Portion counts, label intervals and mass differences use supplied assumptions rather than establishing actual intake or nutritional suitability.
Calculate consumed mass as package fraction and labeled-serving equivalents.
When to use this tool
Use Food Package Multiple Serving Fraction when you already have consumedMass, packageMass, labeledServingMass and need to calculate consumed mass as package fraction and labeled-serving equivalents.
How to use the tool and how it works
- Enter consumedMass, packageMass, labeledServingMass. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read packageFraction, labeledServings. Use the output convention below.
Require package/labeled-serving masses positive/finite and consumedMass>=0; return consumed/package and consumed/serving.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| consumedMass | Consumed Mass | Required. Finite number; minimum 0. |
| packageMass | Package Mass | Required. Finite number; strictly above 0. |
| labeledServingMass | Labeled Serving Mass | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| packageFraction | Consumed mass/package mass; may exceed one and is not constrained as a [0,1] allocation. | Required. Finite number. |
| labeledServings | Labeled Servings | Required. Finite number. |
{
"input": {
"consumedMass": 150,
"packageMass": 300,
"labeledServingMass": 50
},
"output": {
"packageFraction": 0.5,
"labeledServings": 3
}
}Limitations and assumptions
- Consumed mass may exceed one package, giving fractions above one. This does not verify consumption, label accuracy or an appropriate serving size.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Check original food labels, composition sources, ingredient/allergen information and dietary records before combining amounts. Use a complete appropriately interpreted dietary assessment when requirements or suitable intake matter; local scaling and source labels do not make those judgments.
References
Similar or alternative tools
- Food Label Serving Weight Crosswalk
Scale a label's per-serving amount to supplied consumed grams.
- Recipe Portion Count Rounding Residual
Calculate whole mass-based portions and leftover recipe mass.